100013123203 has 12 divisors (see below), whose sum is σ = 121400136720. Its totient is φ = 81998336112.

The previous prime is 100013123143. The next prime is 100013123219. The reversal of 100013123203 is 302321310001.

It is not a de Polignac number, because 100013123203 - 2¹³ = 100013115011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100013123263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44370268 + ... + 44372521.

It is an arithmetic number, because the mean of its divisors is an integer number (10116678060).

Almost surely, 2^100013123203 is an apocalyptic number.

100013123203 is a deficient number, since it is larger than the sum of its proper divisors (21387013517).

100013123203 is an equidigital number, since it uses as much as digits as its factorization.

100013123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88742826 (or 88742819 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 100013123203 its reverse (302321310001), we get a palindrome (402334433204).

The spelling of 100013123203 in words is "one hundred billion, thirteen million, one hundred twenty-three thousand, two hundred three".